For 50 A RVs that want an inverter-charger able to pass both shore power legs through.
Amazon $2,040.98The Go Power! GP-IC-3000-12 rates 3.3 among inverter-chargers 12V inverters; the Go Power! ASW-3000-12-TS rates 3.0 among over 2,000 W ones. The Go Power! ASW-3000-12-TS costs $1,099.41 less ($941.57 vs $2,040.98).

For RVs that already have a converter or solar charging and want an inverter with a built-in transfer switch.
Amazon $941.57Prices were last checked October 24, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different size classes (inverter-chargers and over 2,000 W), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Go Power! GP-IC-3000-12 | Go Power! ASW-3000-12-TS |
|---|---|---|
| Overall rating | 3.3/5 | 3.0/5 |
| Value 30% | 43 $0.68 per continuous watt | 27 $0.31 per continuous watt |
| Idle draw 15% | 50 2.1 A idle (about 25 W) with nothing plugged in | 9 2.8 A idle (about 33.6 W) with nothing plugged in |
| Safety listing 15% | 100 UL certified to 458 & 1741 (with Marine Supplement) and to CSA C22.2 No. 107.1-01 | 100 Certified UL 458; cULus certified |
| Warranty 15% | 50 3-year warranty | 25 2-year warranty |
| Features 15% | 28 optional remote, hardwire terminal; no app | 52 optional remote, transfer switch, hardwire terminal; no app |
| Efficiency 10% | 56 90% peak efficiency (maker rating) | 67 91% peak efficiency (maker rating) |
Specifications
| Go Power! GP-IC-3000-12 | Go Power! ASW-3000-12-TS | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter-charger | Pure sine wave inverter |
| Continuous power | 3,000 W | 3,000 W |
| Surge power | 6,000 W for 100 ms | 6,000 W for 3 s |
| DC input range | 9 to 17 V | 10 to 16.5 V |
| Idle draw | 2.1 A (25 W) | 2.8 A (33.6 W) |
| Power-saving draw | 0.4 A | 0.1 A |
| Peak efficiency | 90% | 91% |
| Connections | ||
| AC outlets | 0 | 0 |
| GFCI outlets | No | No |
| Hardwire terminal | Yes | Yes |
| USB ports | None | None |
| Transfer switch | Yes | Yes |
| Charger | 125 A | - |
| Lithium charge profile | No | - |
| Parallel units | No | No |
| Control and build | ||
| Remote | Optional extra | Optional extra |
| App | No | No |
| Display | No | No |
| Safety listing | UL certified to 458 & 1741 (with Marine Supplement) and to CSA C22.2 No. 107.1-01 | Certified UL 458; cULus certified |
| Cooling | fan | - |
| Dimensions | 349 x 321 x 205 mm | 290 x 102 x 419 mm (11.42 x 4.02 x 16.50 in) |
| Weight | 38.7 lb | 14.3 lb |
| Warranty | 3 years | 2 years |